Does retrofit2 + kotlinx-serialization support returning MutableMap<String, String?>

[zzyyppqq]

Does retrofit2 + kotlinx-serialization support returning MutableMap<String, String?>

After testing, retrofit2 + converter-gson is supported

Unexpected JSON token at offset 49: Unexpected 'null' value instead of string literal at path: $['language']
JSON input: {"name":"kotlinx.serialization", "language": null}
kotlinx.serialization.json.internal.JsonDecodingException: Unexpected JSON token at offset 49: Unexpected 'null' value instead of string literal at path: $['language']
JSON input: {"name":"kotlinx.serialization", "language": null}

interface ApiService {
    @GET("my/test")
    suspend fun test(): Response<MutableMap<String, String?>>
}

@Serializable
data class Response<T>(
    var code: Int = 0,
    var msg: String = "",
    var serverTime: Long = 0,
    var data: T? = null,
)

response json:

{
  "data": {
    "name": "kotlinx.serialization",
    "language": null
  },
  "code": 1,
  "msg": ""
}